ZA721203B - An apparatus for excavating deep holes and trenches - Google Patents

An apparatus for excavating deep holes and trenches

Info

Publication number
ZA721203B
ZA721203B ZA721203A ZA721203A ZA721203B ZA 721203 B ZA721203 B ZA 721203B ZA 721203 A ZA721203 A ZA 721203A ZA 721203 A ZA721203 A ZA 721203A ZA 721203 B ZA721203 B ZA 721203B
Authority
ZA
South Africa
Prior art keywords
trenches
deep holes
excavating deep
excavating
holes
Prior art date
Application number
ZA721203A
Inventor
G Botto
Original Assignee
Costr Cemento Compresso Fondis
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Costr Cemento Compresso Fondis filed Critical Costr Cemento Compresso Fondis
Publication of ZA721203B publication Critical patent/ZA721203B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N19/00—Lubricant containers for use in lubricators or lubrication systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)
ZA721203A 1971-03-01 1972-02-23 An apparatus for excavating deep holes and trenches ZA721203B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21195/71A IT987518B (en) 1971-03-01 1971-03-01 EQUIPMENT FOR EXCAVING HOLES AND TRUNKS OF SIGNIFICANT DEPTH

Publications (1)

Publication Number Publication Date
ZA721203B true ZA721203B (en) 1972-11-29

Family

ID=11178196

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA721203A ZA721203B (en) 1971-03-01 1972-02-23 An apparatus for excavating deep holes and trenches

Country Status (12)

Country Link
US (1) US3750770A (en)
BE (1) BE779940R (en)
BR (1) BR7201203D0 (en)
CA (1) CA961510A (en)
CH (1) CH550291A (en)
DE (1) DE2209876A1 (en)
ES (1) ES400972A2 (en)
FR (1) FR2128474B2 (en)
GB (1) GB1382454A (en)
IT (1) IT987518B (en)
NL (1) NL7202530A (en)
ZA (1) ZA721203B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740101C2 (en) * 1977-09-06 1986-04-24 Casagrande & C. S.p.A., Fontanafredda Drilling grapple
DE19848792C1 (en) * 1998-10-22 2000-05-04 Netzsch Mohnopumpen Gmbh Submersible pump device for use in a borehole
EP1439978B1 (en) * 2001-10-23 2007-01-24 Robert Bosch Gmbh Gear drive unit provided with an adapter
DE102017004270A1 (en) * 2017-05-03 2018-11-08 Liebherr-Werk Nenzing Gmbh Diaphragm wall grab with hybrid drive
CN112253024B (en) * 2020-12-08 2023-03-24 中国石油天然气集团有限公司 Oil pipe sand removal device and sand removal method for oil and gas well

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618294A (en) * 1926-03-30 1927-02-22 Olson Joseph Underreamer
US2203246A (en) * 1938-11-01 1940-06-04 Estate Of Emil H Zum Berge Underreamer
US2645458A (en) * 1950-07-29 1953-07-14 Yost Merrill Hole boring rig
US3113629A (en) * 1960-11-29 1963-12-10 Benoto Sa Boring apparatus whose opening is adjustable
US3194329A (en) * 1964-06-11 1965-07-13 Calweld Inc Hydraulic grab bucket

Also Published As

Publication number Publication date
CH550291A (en) 1974-06-14
GB1382454A (en) 1975-01-29
FR2128474B2 (en) 1977-12-23
DE2209876A1 (en) 1972-11-02
US3750770A (en) 1973-08-07
FR2128474A2 (en) 1972-10-20
NL7202530A (en) 1972-09-05
BR7201203D0 (en) 1973-05-10
BE779940R (en) 1972-06-16
ES400972A2 (en) 1975-01-16
IT987518B (en) 1975-03-20
CA961510A (en) 1975-01-21

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